TiO2(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance

Zunxian Yang; Guodong Du; Zaiping Guo; Xuebin Yu; Zhixin Chen; Tailiang Guo; Huakun Liu

doi:10.1039/C0JM03873C

TiO₂(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance†

Zunxian Yang,*^a Guodong Du,^b Zaiping Guo,*^bc Xuebin Yu,*^d Zhixin Chen,^c Tailiang Guo^a and Huakun Liu^b

* Corresponding authors

^a Engineering Research Center for Field Emission Display Technology of Ministry of Education, Fuzhou University, Fuzhou 350002, P. R. China
E-mail: yangzunxian@hotmail.com
Fax: +61 2 4221 5731
Tel: +61 2 4221 5225

^b Institute for Superconducting & Electronic Materials, University of Wollongong, NSW 2522, Australia
E-mail: zguo@uow.edu.au

^c School of Mechanical, Materials & Mechatronics Engineering, University of Wollongong, NSW 2522, Australia

^d Department of Materials Science, Fudan University, Shanghai 200433, P. R. China
E-mail: yuxuebin@fudan.edu.cn

Abstract

Novel TiO₂(B)@carbon composite nanowires were simply prepared by a two-step hydrothermal process with subsequent heat treatment in argon. The nanostructures exhibit the unique feature of having TiO₂(B) encapsulated inside and an amorphous carbon layer coating the outside. The unique core/shell structure and chemical composition is likely to lead to perfect performance in many applications. In this paper, the results of Li-ion battery testing are presented to demonstrate the superior cyclic performance and rate capability of the TiO₂(B)@carbon nanowires. The composite nanowires exhibit a high reversible capacity of 560 mAh g⁻¹ after 100 cycles at the current density of 30 mA g⁻¹, and excellent cycling stability and rate capability (200 mAh g⁻¹ when cycled at the current density of 750 mA g⁻¹), indicating that the composite is a promising anode candidate for Li-ion batteries.

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Article information

DOI: https://doi.org/10.1039/C0JM03873C
Article type: Paper
Submitted: 10 Nov 2010
Accepted: 01 Apr 2011
First published: 09 May 2011

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J. Mater. Chem., 2011,21, 8591-8596

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TiO₂(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance

Z. Yang, G. Du, Z. Guo, X. Yu, Z. Chen, T. Guo and H. Liu, J. Mater. Chem., 2011, 21, 8591 DOI: 10.1039/C0JM03873C

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Journal of Materials Chemistry